/js/lib/Socket.IO-node/support/expresso/deps/jscoverage/js/jsobj.h
C++ Header | 735 lines | 428 code | 126 blank | 181 comment | 25 complexity | ec33ff684b60fb42f18e01efe3ebe89c MD5 | raw file
Possible License(s): GPL-2.0, LGPL-2.1, MPL-2.0-no-copyleft-exception, BSD-3-Clause
- /* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
- * vim: set ts=8 sw=4 et tw=78:
- *
- * ***** BEGIN LICENSE BLOCK *****
- * Version: MPL 1.1/GPL 2.0/LGPL 2.1
- *
- * The contents of this file are subject to the Mozilla Public License Version
- * 1.1 (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- * http://www.mozilla.org/MPL/
- *
- * Software distributed under the License is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
- * for the specific language governing rights and limitations under the
- * License.
- *
- * The Original Code is Mozilla Communicator client code, released
- * March 31, 1998.
- *
- * The Initial Developer of the Original Code is
- * Netscape Communications Corporation.
- * Portions created by the Initial Developer are Copyright (C) 1998
- * the Initial Developer. All Rights Reserved.
- *
- * Contributor(s):
- *
- * Alternatively, the contents of this file may be used under the terms of
- * either of the GNU General Public License Version 2 or later (the "GPL"),
- * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
- * in which case the provisions of the GPL or the LGPL are applicable instead
- * of those above. If you wish to allow use of your version of this file only
- * under the terms of either the GPL or the LGPL, and not to allow others to
- * use your version of this file under the terms of the MPL, indicate your
- * decision by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL or the LGPL. If you do not delete
- * the provisions above, a recipient may use your version of this file under
- * the terms of any one of the MPL, the GPL or the LGPL.
- *
- * ***** END LICENSE BLOCK ***** */
- #ifndef jsobj_h___
- #define jsobj_h___
- /*
- * JS object definitions.
- *
- * A JS object consists of a possibly-shared object descriptor containing
- * ordered property names, called the map; and a dense vector of property
- * values, called slots. The map/slot pointer pair is GC'ed, while the map
- * is reference counted and the slot vector is malloc'ed.
- */
- #include "jshash.h" /* Added by JSIFY */
- #include "jsprvtd.h"
- #include "jspubtd.h"
- JS_BEGIN_EXTERN_C
- struct JSObjectMap {
- jsrefcount nrefs; /* count of all referencing objects */
- JSObjectOps *ops; /* high level object operation vtable */
- uint32 freeslot; /* index of next free slot in object */
- };
- /* Shorthand macros for frequently-made calls. */
- #define OBJ_LOOKUP_PROPERTY(cx,obj,id,objp,propp) \
- (obj)->map->ops->lookupProperty(cx,obj,id,objp,propp)
- #define OBJ_DEFINE_PROPERTY(cx,obj,id,value,getter,setter,attrs,propp) \
- (obj)->map->ops->defineProperty(cx,obj,id,value,getter,setter,attrs,propp)
- #define OBJ_GET_PROPERTY(cx,obj,id,vp) \
- (obj)->map->ops->getProperty(cx,obj,id,vp)
- #define OBJ_SET_PROPERTY(cx,obj,id,vp) \
- (obj)->map->ops->setProperty(cx,obj,id,vp)
- #define OBJ_GET_ATTRIBUTES(cx,obj,id,prop,attrsp) \
- (obj)->map->ops->getAttributes(cx,obj,id,prop,attrsp)
- #define OBJ_SET_ATTRIBUTES(cx,obj,id,prop,attrsp) \
- (obj)->map->ops->setAttributes(cx,obj,id,prop,attrsp)
- #define OBJ_DELETE_PROPERTY(cx,obj,id,rval) \
- (obj)->map->ops->deleteProperty(cx,obj,id,rval)
- #define OBJ_DEFAULT_VALUE(cx,obj,hint,vp) \
- (obj)->map->ops->defaultValue(cx,obj,hint,vp)
- #define OBJ_ENUMERATE(cx,obj,enum_op,statep,idp) \
- (obj)->map->ops->enumerate(cx,obj,enum_op,statep,idp)
- #define OBJ_CHECK_ACCESS(cx,obj,id,mode,vp,attrsp) \
- (obj)->map->ops->checkAccess(cx,obj,id,mode,vp,attrsp)
- /* These four are time-optimized to avoid stub calls. */
- #define OBJ_THIS_OBJECT(cx,obj) \
- ((obj)->map->ops->thisObject \
- ? (obj)->map->ops->thisObject(cx,obj) \
- : (obj))
- #define OBJ_DROP_PROPERTY(cx,obj,prop) \
- ((obj)->map->ops->dropProperty \
- ? (obj)->map->ops->dropProperty(cx,obj,prop) \
- : (void)0)
- #define OBJ_GET_REQUIRED_SLOT(cx,obj,slot) \
- ((obj)->map->ops->getRequiredSlot \
- ? (obj)->map->ops->getRequiredSlot(cx, obj, slot) \
- : JSVAL_VOID)
- #define OBJ_SET_REQUIRED_SLOT(cx,obj,slot,v) \
- ((obj)->map->ops->setRequiredSlot \
- ? (obj)->map->ops->setRequiredSlot(cx, obj, slot, v) \
- : JS_TRUE)
- #define OBJ_TO_INNER_OBJECT(cx,obj) \
- JS_BEGIN_MACRO \
- JSClass *clasp_ = OBJ_GET_CLASS(cx, obj); \
- if (clasp_->flags & JSCLASS_IS_EXTENDED) { \
- JSExtendedClass *xclasp_ = (JSExtendedClass*)clasp_; \
- if (xclasp_->innerObject) \
- obj = xclasp_->innerObject(cx, obj); \
- } \
- JS_END_MACRO
- #define OBJ_TO_OUTER_OBJECT(cx,obj) \
- JS_BEGIN_MACRO \
- JSClass *clasp_ = OBJ_GET_CLASS(cx, obj); \
- if (clasp_->flags & JSCLASS_IS_EXTENDED) { \
- JSExtendedClass *xclasp_ = (JSExtendedClass*)clasp_; \
- if (xclasp_->outerObject) \
- obj = xclasp_->outerObject(cx, obj); \
- } \
- JS_END_MACRO
- #define JS_INITIAL_NSLOTS 5
- /*
- * When JSObject.dslots is not null, JSObject.dslots[-1] records the number of
- * available slots.
- */
- struct JSObject {
- JSObjectMap *map;
- jsuword classword;
- jsval fslots[JS_INITIAL_NSLOTS];
- jsval *dslots; /* dynamically allocated slots */
- };
- #define JSSLOT_PROTO 0
- #define JSSLOT_PARENT 1
- #define JSSLOT_PRIVATE 2
- #define JSSLOT_START(clasp) (((clasp)->flags & JSCLASS_HAS_PRIVATE) \
- ? JSSLOT_PRIVATE + 1 \
- : JSSLOT_PARENT + 1)
- #define JSSLOT_FREE(clasp) (JSSLOT_START(clasp) \
- + JSCLASS_RESERVED_SLOTS(clasp))
- /*
- * STOBJ prefix means Single Threaded Object. Use the following fast macros to
- * directly manipulate slots in obj when only one thread can access obj and
- * when obj->map->freeslot can be inconsistent with slots.
- */
- #define STOBJ_NSLOTS(obj) \
- ((obj)->dslots ? (uint32)(obj)->dslots[-1] : (uint32)JS_INITIAL_NSLOTS)
- #define STOBJ_GET_SLOT(obj,slot) \
- ((slot) < JS_INITIAL_NSLOTS \
- ? (obj)->fslots[(slot)] \
- : (JS_ASSERT((slot) < (uint32)(obj)->dslots[-1]), \
- (obj)->dslots[(slot) - JS_INITIAL_NSLOTS]))
- #define STOBJ_SET_SLOT(obj,slot,value) \
- ((slot) < JS_INITIAL_NSLOTS \
- ? (obj)->fslots[(slot)] = (value) \
- : (JS_ASSERT((slot) < (uint32)(obj)->dslots[-1]), \
- (obj)->dslots[(slot) - JS_INITIAL_NSLOTS] = (value)))
- #define STOBJ_GET_PROTO(obj) \
- JSVAL_TO_OBJECT((obj)->fslots[JSSLOT_PROTO])
- #define STOBJ_SET_PROTO(obj,proto) \
- (void)(STOBJ_NULLSAFE_SET_DELEGATE(proto), \
- (obj)->fslots[JSSLOT_PROTO] = OBJECT_TO_JSVAL(proto))
- #define STOBJ_CLEAR_PROTO(obj) \
- ((obj)->fslots[JSSLOT_PROTO] = JSVAL_NULL)
- #define STOBJ_GET_PARENT(obj) \
- JSVAL_TO_OBJECT((obj)->fslots[JSSLOT_PARENT])
- #define STOBJ_SET_PARENT(obj,parent) \
- (void)(STOBJ_NULLSAFE_SET_DELEGATE(parent), \
- (obj)->fslots[JSSLOT_PARENT] = OBJECT_TO_JSVAL(parent))
- #define STOBJ_CLEAR_PARENT(obj) \
- ((obj)->fslots[JSSLOT_PARENT] = JSVAL_NULL)
- /*
- * We use JSObject.classword to store both JSClass* and the delegate and system
- * flags in the two least significant bits. We do *not* synchronize updates of
- * obj->classword -- API clients must take care.
- */
- #define STOBJ_GET_CLASS(obj) ((JSClass *)((obj)->classword & ~3))
- #define STOBJ_IS_DELEGATE(obj) (((obj)->classword & 1) != 0)
- #define STOBJ_SET_DELEGATE(obj) ((obj)->classword |= 1)
- #define STOBJ_NULLSAFE_SET_DELEGATE(obj) \
- (!(obj) || STOBJ_SET_DELEGATE((JSObject*)obj))
- #define STOBJ_IS_SYSTEM(obj) (((obj)->classword & 2) != 0)
- #define STOBJ_SET_SYSTEM(obj) ((obj)->classword |= 2)
- #define STOBJ_GET_PRIVATE(obj) \
- (JS_ASSERT(JSVAL_IS_INT(STOBJ_GET_SLOT(obj, JSSLOT_PRIVATE))), \
- JSVAL_TO_PRIVATE(STOBJ_GET_SLOT(obj, JSSLOT_PRIVATE)))
- #define OBJ_CHECK_SLOT(obj,slot) \
- JS_ASSERT(slot < (obj)->map->freeslot)
- #define LOCKED_OBJ_GET_SLOT(obj,slot) \
- (OBJ_CHECK_SLOT(obj, slot), STOBJ_GET_SLOT(obj, slot))
- #define LOCKED_OBJ_SET_SLOT(obj,slot,value) \
- (OBJ_CHECK_SLOT(obj, slot), STOBJ_SET_SLOT(obj, slot, value))
- /*
- * NB: Don't call LOCKED_OBJ_SET_SLOT or STOBJ_SET_SLOT for a write to a slot
- * that may contain a function reference already, or where the new value is a
- * function ref, and the object's scope may be branded with a property cache
- * structural type capability that distinguishes versions of the object with
- * and without the function property. Instead use LOCKED_OBJ_WRITE_BARRIER or
- * a fast inline equivalent (JSOP_SETNAME/JSOP_SETPROP cases in jsinterp.c).
- */
- #define LOCKED_OBJ_WRITE_BARRIER(cx,obj,slot,newval) \
- JS_BEGIN_MACRO \
- JSScope *scope_ = OBJ_SCOPE(obj); \
- JS_ASSERT(scope_->object == (obj)); \
- GC_WRITE_BARRIER(cx, scope_, LOCKED_OBJ_GET_SLOT(obj, slot), newval); \
- LOCKED_OBJ_SET_SLOT(obj, slot, newval); \
- JS_END_MACRO
- #define LOCKED_OBJ_GET_PROTO(obj) \
- (OBJ_CHECK_SLOT(obj, JSSLOT_PROTO), STOBJ_GET_PROTO(obj))
- #define LOCKED_OBJ_SET_PROTO(obj,proto) \
- (OBJ_CHECK_SLOT(obj, JSSLOT_PROTO), STOBJ_SET_PROTO(obj, proto))
- #define LOCKED_OBJ_GET_PARENT(obj) \
- (OBJ_CHECK_SLOT(obj, JSSLOT_PARENT), STOBJ_GET_PARENT(obj))
- #define LOCKED_OBJ_SET_PARENT(obj,parent) \
- (OBJ_CHECK_SLOT(obj, JSSLOT_PARENT), STOBJ_SET_PARENT(obj, parent))
- #define LOCKED_OBJ_GET_CLASS(obj) \
- STOBJ_GET_CLASS(obj)
- #define LOCKED_OBJ_GET_PRIVATE(obj) \
- (OBJ_CHECK_SLOT(obj, JSSLOT_PRIVATE), STOBJ_GET_PRIVATE(obj))
- #ifdef JS_THREADSAFE
- /* Thread-safe functions and wrapper macros for accessing slots in obj. */
- #define OBJ_GET_SLOT(cx,obj,slot) \
- (OBJ_CHECK_SLOT(obj, slot), \
- (OBJ_IS_NATIVE(obj) && OBJ_SCOPE(obj)->title.ownercx == cx) \
- ? LOCKED_OBJ_GET_SLOT(obj, slot) \
- : js_GetSlotThreadSafe(cx, obj, slot))
- #define OBJ_SET_SLOT(cx,obj,slot,value) \
- JS_BEGIN_MACRO \
- OBJ_CHECK_SLOT(obj, slot); \
- if (OBJ_IS_NATIVE(obj) && OBJ_SCOPE(obj)->title.ownercx == cx) \
- LOCKED_OBJ_WRITE_BARRIER(cx, obj, slot, value); \
- else \
- js_SetSlotThreadSafe(cx, obj, slot, value); \
- JS_END_MACRO
- /*
- * If thread-safe, define an OBJ_GET_SLOT wrapper that bypasses, for a native
- * object, the lock-free "fast path" test of (OBJ_SCOPE(obj)->ownercx == cx),
- * to avoid needlessly switching from lock-free to lock-full scope when doing
- * GC on a different context from the last one to own the scope. The caller
- * in this case is probably a JSClass.mark function, e.g., fun_mark, or maybe
- * a finalizer.
- *
- * The GC runs only when all threads except the one on which the GC is active
- * are suspended at GC-safe points, so calling STOBJ_GET_SLOT from the GC's
- * thread is safe when rt->gcRunning is set. See jsgc.c for details.
- */
- #define THREAD_IS_RUNNING_GC(rt, thread) \
- ((rt)->gcRunning && (rt)->gcThread == (thread))
- #define CX_THREAD_IS_RUNNING_GC(cx) \
- THREAD_IS_RUNNING_GC((cx)->runtime, (cx)->thread)
- #else /* !JS_THREADSAFE */
- #define OBJ_GET_SLOT(cx,obj,slot) LOCKED_OBJ_GET_SLOT(obj,slot)
- #define OBJ_SET_SLOT(cx,obj,slot,value) LOCKED_OBJ_WRITE_BARRIER(cx,obj,slot, \
- value)
- #endif /* !JS_THREADSAFE */
- /* Thread-safe delegate, proto, parent, and class access macros. */
- #define OBJ_IS_DELEGATE(cx,obj) STOBJ_IS_DELEGATE(obj)
- #define OBJ_SET_DELEGATE(cx,obj) STOBJ_SET_DELEGATE(obj)
- #define OBJ_GET_PROTO(cx,obj) STOBJ_GET_PROTO(obj)
- #define OBJ_SET_PROTO(cx,obj,proto) STOBJ_SET_PROTO(obj, proto)
- #define OBJ_CLEAR_PROTO(cx,obj) STOBJ_CLEAR_PROTO(obj)
- #define OBJ_GET_PARENT(cx,obj) STOBJ_GET_PARENT(obj)
- #define OBJ_SET_PARENT(cx,obj,parent) STOBJ_SET_PARENT(obj, parent)
- #define OBJ_CLEAR_PARENT(cx,obj) STOBJ_CLEAR_PARENT(obj)
- /*
- * Class is invariant and comes from the fixed clasp member. Thus no locking
- * is necessary to read it. Same for the private slot.
- */
- #define OBJ_GET_CLASS(cx,obj) STOBJ_GET_CLASS(obj)
- #define OBJ_GET_PRIVATE(cx,obj) STOBJ_GET_PRIVATE(obj)
- /* Test whether a map or object is native. */
- #define MAP_IS_NATIVE(map) \
- JS_LIKELY((map)->ops == &js_ObjectOps || \
- (map)->ops->newObjectMap == js_ObjectOps.newObjectMap)
- #define OBJ_IS_NATIVE(obj) MAP_IS_NATIVE((obj)->map)
- extern JS_FRIEND_DATA(JSObjectOps) js_ObjectOps;
- extern JS_FRIEND_DATA(JSObjectOps) js_WithObjectOps;
- extern JSClass js_ObjectClass;
- extern JSClass js_WithClass;
- extern JSClass js_BlockClass;
- /*
- * Block scope object macros. The slots reserved by js_BlockClass are:
- *
- * JSSLOT_PRIVATE JSStackFrame * active frame pointer or null
- * JSSLOT_BLOCK_DEPTH int depth of block slots in frame
- *
- * After JSSLOT_BLOCK_DEPTH come one or more slots for the block locals.
- *
- * A With object is like a Block object, in that both have one reserved slot
- * telling the stack depth of the relevant slots (the slot whose value is the
- * object named in the with statement, the slots containing the block's local
- * variables); and both have a private slot referring to the JSStackFrame in
- * whose activation they were created (or null if the with or block object
- * outlives the frame).
- */
- #define JSSLOT_BLOCK_DEPTH (JSSLOT_PRIVATE + 1)
- #define OBJ_IS_CLONED_BLOCK(obj) \
- (OBJ_SCOPE(obj)->object != (obj))
- #define OBJ_BLOCK_COUNT(cx,obj) \
- (OBJ_SCOPE(obj)->entryCount)
- #define OBJ_BLOCK_DEPTH(cx,obj) \
- JSVAL_TO_INT(STOBJ_GET_SLOT(obj, JSSLOT_BLOCK_DEPTH))
- #define OBJ_SET_BLOCK_DEPTH(cx,obj,depth) \
- STOBJ_SET_SLOT(obj, JSSLOT_BLOCK_DEPTH, INT_TO_JSVAL(depth))
- /*
- * To make sure this slot is well-defined, always call js_NewWithObject to
- * create a With object, don't call js_NewObject directly. When creating a
- * With object that does not correspond to a stack slot, pass -1 for depth.
- *
- * When popping the stack across this object's "with" statement, client code
- * must call JS_SetPrivate(cx, withobj, NULL).
- */
- extern JSObject *
- js_NewWithObject(JSContext *cx, JSObject *proto, JSObject *parent, jsint depth);
- /*
- * Create a new block scope object not linked to any proto or parent object.
- * Blocks are created by the compiler to reify let blocks and comprehensions.
- * Only when dynamic scope is captured do they need to be cloned and spliced
- * into an active scope chain.
- */
- extern JSObject *
- js_NewBlockObject(JSContext *cx);
- extern JSObject *
- js_CloneBlockObject(JSContext *cx, JSObject *proto, JSObject *parent,
- JSStackFrame *fp);
- extern JSBool
- js_PutBlockObject(JSContext *cx, JSBool normalUnwind);
- struct JSSharpObjectMap {
- jsrefcount depth;
- jsatomid sharpgen;
- JSHashTable *table;
- };
- #define SHARP_BIT ((jsatomid) 1)
- #define BUSY_BIT ((jsatomid) 2)
- #define SHARP_ID_SHIFT 2
- #define IS_SHARP(he) (JS_PTR_TO_UINT32((he)->value) & SHARP_BIT)
- #define MAKE_SHARP(he) ((he)->value = JS_UINT32_TO_PTR(JS_PTR_TO_UINT32((he)->value)|SHARP_BIT))
- #define IS_BUSY(he) (JS_PTR_TO_UINT32((he)->value) & BUSY_BIT)
- #define MAKE_BUSY(he) ((he)->value = JS_UINT32_TO_PTR(JS_PTR_TO_UINT32((he)->value)|BUSY_BIT))
- #define CLEAR_BUSY(he) ((he)->value = JS_UINT32_TO_PTR(JS_PTR_TO_UINT32((he)->value)&~BUSY_BIT))
- extern JSHashEntry *
- js_EnterSharpObject(JSContext *cx, JSObject *obj, JSIdArray **idap,
- jschar **sp);
- extern void
- js_LeaveSharpObject(JSContext *cx, JSIdArray **idap);
- /*
- * Mark objects stored in map if GC happens between js_EnterSharpObject
- * and js_LeaveSharpObject. GC calls this when map->depth > 0.
- */
- extern void
- js_TraceSharpMap(JSTracer *trc, JSSharpObjectMap *map);
- extern JSBool
- js_HasOwnPropertyHelper(JSContext *cx, JSLookupPropOp lookup, uintN argc,
- jsval *vp);
- extern JSBool
- js_HasOwnProperty(JSContext *cx, JSLookupPropOp lookup, JSObject *obj, jsid id,
- jsval *vp);
- extern JSBool
- js_PropertyIsEnumerable(JSContext *cx, JSObject *obj, jsid id, jsval *vp);
- extern JSObject *
- js_InitBlockClass(JSContext *cx, JSObject* obj);
- extern JSObject *
- js_InitEval(JSContext *cx, JSObject *obj);
- extern JSObject *
- js_InitObjectClass(JSContext *cx, JSObject *obj);
- /* Select Object.prototype method names shared between jsapi.c and jsobj.c. */
- extern const char js_watch_str[];
- extern const char js_unwatch_str[];
- extern const char js_hasOwnProperty_str[];
- extern const char js_isPrototypeOf_str[];
- extern const char js_propertyIsEnumerable_str[];
- extern const char js_defineGetter_str[];
- extern const char js_defineSetter_str[];
- extern const char js_lookupGetter_str[];
- extern const char js_lookupSetter_str[];
- extern void
- js_InitObjectMap(JSObjectMap *map, jsrefcount nrefs, JSObjectOps *ops,
- JSClass *clasp);
- extern JSObjectMap *
- js_NewObjectMap(JSContext *cx, jsrefcount nrefs, JSObjectOps *ops,
- JSClass *clasp, JSObject *obj);
- extern void
- js_DestroyObjectMap(JSContext *cx, JSObjectMap *map);
- extern JSObjectMap *
- js_HoldObjectMap(JSContext *cx, JSObjectMap *map);
- extern JSObjectMap *
- js_DropObjectMap(JSContext *cx, JSObjectMap *map, JSObject *obj);
- extern JSBool
- js_GetClassId(JSContext *cx, JSClass *clasp, jsid *idp);
- extern JSObject *
- js_NewObject(JSContext *cx, JSClass *clasp, JSObject *proto, JSObject *parent,
- uintN objectSize);
- /*
- * See jsapi.h, JS_NewObjectWithGivenProto.
- *
- * objectSize is either the explicit size for the allocated object or 0
- * indicating to use the default size based on object's class.
- */
- extern JSObject *
- js_NewObjectWithGivenProto(JSContext *cx, JSClass *clasp, JSObject *proto,
- JSObject *parent, uintN objectSize);
- /*
- * Fast access to immutable standard objects (constructors and prototypes).
- */
- extern JSBool
- js_GetClassObject(JSContext *cx, JSObject *obj, JSProtoKey key,
- JSObject **objp);
- extern JSBool
- js_SetClassObject(JSContext *cx, JSObject *obj, JSProtoKey key, JSObject *cobj);
- extern JSBool
- js_FindClassObject(JSContext *cx, JSObject *start, jsid id, jsval *vp);
- extern JSObject *
- js_ConstructObject(JSContext *cx, JSClass *clasp, JSObject *proto,
- JSObject *parent, uintN argc, jsval *argv);
- extern void
- js_FinalizeObject(JSContext *cx, JSObject *obj);
- extern JSBool
- js_AllocSlot(JSContext *cx, JSObject *obj, uint32 *slotp);
- extern void
- js_FreeSlot(JSContext *cx, JSObject *obj, uint32 slot);
- /* JSVAL_INT_MAX as a string */
- #define JSVAL_INT_MAX_STRING "1073741823"
- #define CHECK_FOR_STRING_INDEX(id) \
- JS_BEGIN_MACRO \
- if (JSID_IS_ATOM(id)) { \
- JSAtom *atom_ = JSID_TO_ATOM(id); \
- JSString *str_ = ATOM_TO_STRING(atom_); \
- const jschar *s_ = JSFLATSTR_CHARS(str_); \
- JSBool negative_ = (*s_ == '-'); \
- if (negative_) s_++; \
- if (JS7_ISDEC(*s_)) { \
- size_t n_ = JSFLATSTR_LENGTH(str_) - negative_; \
- if (n_ <= sizeof(JSVAL_INT_MAX_STRING) - 1) \
- id = js_CheckForStringIndex(id, s_, s_ + n_, negative_); \
- } \
- } \
- JS_END_MACRO
- extern jsid
- js_CheckForStringIndex(jsid id, const jschar *cp, const jschar *end,
- JSBool negative);
- /*
- * Find or create a property named by id in obj's scope, with the given getter
- * and setter, slot, attributes, and other members.
- */
- extern JSScopeProperty *
- js_AddNativeProperty(JSContext *cx, JSObject *obj, jsid id,
- JSPropertyOp getter, JSPropertyOp setter, uint32 slot,
- uintN attrs, uintN flags, intN shortid);
- /*
- * Change sprop to have the given attrs, getter, and setter in scope, morphing
- * it into a potentially new JSScopeProperty. Return a pointer to the changed
- * or identical property.
- */
- extern JSScopeProperty *
- js_ChangeNativePropertyAttrs(JSContext *cx, JSObject *obj,
- JSScopeProperty *sprop, uintN attrs, uintN mask,
- JSPropertyOp getter, JSPropertyOp setter);
- /*
- * On error, return false. On success, if propp is non-null, return true with
- * obj locked and with a held property in *propp; if propp is null, return true
- * but release obj's lock first. Therefore all callers who pass non-null propp
- * result parameters must later call OBJ_DROP_PROPERTY(cx, obj, *propp) both to
- * drop the held property, and to release the lock on obj.
- */
- extern JSBool
- js_DefineProperty(JSContext *cx, JSObject *obj, jsid id, jsval value,
- JSPropertyOp getter, JSPropertyOp setter, uintN attrs,
- JSProperty **propp);
- extern JSBool
- js_DefineNativeProperty(JSContext *cx, JSObject *obj, jsid id, jsval value,
- JSPropertyOp getter, JSPropertyOp setter, uintN attrs,
- uintN flags, intN shortid, JSProperty **propp);
- /*
- * Unlike js_DefineProperty, propp must be non-null. On success, and if id was
- * found, return true with *objp non-null and locked, and with a held property
- * stored in *propp. If successful but id was not found, return true with both
- * *objp and *propp null. Therefore all callers who receive a non-null *propp
- * must later call OBJ_DROP_PROPERTY(cx, *objp, *propp).
- */
- extern JS_FRIEND_API(JSBool)
- js_LookupProperty(JSContext *cx, JSObject *obj, jsid id, JSObject **objp,
- JSProperty **propp);
- /*
- * Specialized subroutine that allows caller to preset JSRESOLVE_* flags and
- * returns the index along the prototype chain in which *propp was found, or
- * the last index if not found, or -1 on error.
- */
- extern int
- js_LookupPropertyWithFlags(JSContext *cx, JSObject *obj, jsid id, uintN flags,
- JSObject **objp, JSProperty **propp);
- extern int
- js_FindPropertyHelper(JSContext *cx, jsid id, JSObject **objp,
- JSObject **pobjp, JSProperty **propp,
- JSPropCacheEntry **entryp);
- /*
- * Return the index along the scope chain in which id was found, or the last
- * index if not found, or -1 on error.
- */
- extern JS_FRIEND_API(JSBool)
- js_FindProperty(JSContext *cx, jsid id, JSObject **objp, JSObject **pobjp,
- JSProperty **propp);
- extern JSObject *
- js_FindIdentifierBase(JSContext *cx, jsid id, JSPropCacheEntry *entry);
- extern JSObject *
- js_FindVariableScope(JSContext *cx, JSFunction **funp);
- /*
- * NB: js_NativeGet and js_NativeSet are called with the scope containing sprop
- * (pobj's scope for Get, obj's for Set) locked, and on successful return, that
- * scope is again locked. But on failure, both functions return false with the
- * scope containing sprop unlocked.
- */
- extern JSBool
- js_NativeGet(JSContext *cx, JSObject *obj, JSObject *pobj,
- JSScopeProperty *sprop, jsval *vp);
- extern JSBool
- js_NativeSet(JSContext *cx, JSObject *obj, JSScopeProperty *sprop, jsval *vp);
- extern JSBool
- js_GetPropertyHelper(JSContext *cx, JSObject *obj, jsid id, jsval *vp,
- JSPropCacheEntry **entryp);
- extern JSBool
- js_GetProperty(JSContext *cx, JSObject *obj, jsid id, jsval *vp);
- extern JSBool
- js_SetPropertyHelper(JSContext *cx, JSObject *obj, jsid id, jsval *vp,
- JSPropCacheEntry **entryp);
- extern JSBool
- js_SetProperty(JSContext *cx, JSObject *obj, jsid id, jsval *vp);
- extern JSBool
- js_GetAttributes(JSContext *cx, JSObject *obj, jsid id, JSProperty *prop,
- uintN *attrsp);
- extern JSBool
- js_SetAttributes(JSContext *cx, JSObject *obj, jsid id, JSProperty *prop,
- uintN *attrsp);
- extern JSBool
- js_DeleteProperty(JSContext *cx, JSObject *obj, jsid id, jsval *rval);
- extern JSBool
- js_DefaultValue(JSContext *cx, JSObject *obj, JSType hint, jsval *vp);
- extern JSBool
- js_Enumerate(JSContext *cx, JSObject *obj, JSIterateOp enum_op,
- jsval *statep, jsid *idp);
- extern void
- js_TraceNativeEnumerators(JSTracer *trc);
- extern JSBool
- js_CheckAccess(JSContext *cx, JSObject *obj, jsid id, JSAccessMode mode,
- jsval *vp, uintN *attrsp);
- extern JSBool
- js_Call(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval);
- extern JSBool
- js_Construct(JSContext *cx, JSObject *obj, uintN argc, jsval *argv,
- jsval *rval);
- extern JSBool
- js_HasInstance(JSContext *cx, JSObject *obj, jsval v, JSBool *bp);
- extern JSBool
- js_SetProtoOrParent(JSContext *cx, JSObject *obj, uint32 slot, JSObject *pobj);
- extern JSBool
- js_IsDelegate(JSContext *cx, JSObject *obj, jsval v, JSBool *bp);
- extern JSBool
- js_GetClassPrototype(JSContext *cx, JSObject *scope, jsid id,
- JSObject **protop);
- extern JSBool
- js_SetClassPrototype(JSContext *cx, JSObject *ctor, JSObject *proto,
- uintN attrs);
- /*
- * Wrap boolean, number or string as Boolean, Number or String object.
- * *vp must not be an object, null or undefined.
- */
- extern JSBool
- js_PrimitiveToObject(JSContext *cx, jsval *vp);
- extern JSBool
- js_ValueToObject(JSContext *cx, jsval v, JSObject **objp);
- extern JSObject *
- js_ValueToNonNullObject(JSContext *cx, jsval v);
- extern JSBool
- js_TryValueOf(JSContext *cx, JSObject *obj, JSType type, jsval *rval);
- extern JSBool
- js_TryMethod(JSContext *cx, JSObject *obj, JSAtom *atom,
- uintN argc, jsval *argv, jsval *rval);
- extern JSBool
- js_XDRObject(JSXDRState *xdr, JSObject **objp);
- extern void
- js_TraceObject(JSTracer *trc, JSObject *obj);
- extern void
- js_PrintObjectSlotName(JSTracer *trc, char *buf, size_t bufsize);
- extern void
- js_Clear(JSContext *cx, JSObject *obj);
- extern jsval
- js_GetRequiredSlot(JSContext *cx, JSObject *obj, uint32 slot);
- extern JSBool
- js_SetRequiredSlot(JSContext *cx, JSObject *obj, uint32 slot, jsval v);
- /*
- * Precondition: obj must be locked.
- */
- extern JSBool
- js_ReallocSlots(JSContext *cx, JSObject *obj, uint32 nslots,
- JSBool exactAllocation);
- extern JSObject *
- js_CheckScopeChainValidity(JSContext *cx, JSObject *scopeobj, const char *caller);
- extern JSBool
- js_CheckPrincipalsAccess(JSContext *cx, JSObject *scopeobj,
- JSPrincipals *principals, JSAtom *caller);
- /* Infallible -- returns its argument if there is no wrapped object. */
- extern JSObject *
- js_GetWrappedObject(JSContext *cx, JSObject *obj);
- /* NB: Infallible. */
- extern const char *
- js_ComputeFilename(JSContext *cx, JSStackFrame *caller,
- JSPrincipals *principals, uintN *linenop);
- #ifdef DEBUG
- JS_FRIEND_API(void) js_DumpChars(const jschar *s, size_t n);
- JS_FRIEND_API(void) js_DumpString(JSString *str);
- JS_FRIEND_API(void) js_DumpAtom(JSAtom *atom);
- JS_FRIEND_API(void) js_DumpValue(jsval val);
- JS_FRIEND_API(void) js_DumpId(jsid id);
- JS_FRIEND_API(void) js_DumpObject(JSObject *obj);
- #endif
- JS_END_EXTERN_C
- #endif /* jsobj_h___ */